style: format frontend with prettier

Mechanical one-shot pass of pnpm format over src/, tests/, tools/, and
root configs. No functional changes; build and type-check verified.

src/components/duplicateFinder/DuplicateFinderEmptyStates.tsx

@@ -2,29 +2,38 @@ export function DuplicateScanLoadingState({ progressLabel }: { progressLabel: st
   return (
     <div className="flex flex-1 items-center justify-center gap-3 text-white/25">
       <div className="h-5 w-5 animate-spin rounded-full border-2 border-white/15 border-t-white/50" />
-      <span className="text-sm">{progressLabel ? `${progressLabel}…` : "Preparing scan…"}</span>
+      <span className="text-sm">{progressLabel ? `${progressLabel}…` : 'Preparing scan…'}</span>
     </div>
-  );
+  )
 }
 
 export function DuplicateScanIntroState() {
   return (
     <div className="flex flex-1 items-center justify-center px-8">
       <div className="max-w-sm text-center">
-        <svg className="mx-auto mb-4 h-10 w-10 text-white/10" fill="none" viewBox="0 0 24 24" stroke="currentColor">
-          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1}
-            d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z" />
+        <svg
+          className="mx-auto mb-4 h-10 w-10 text-white/10"
+          fill="none"
+          viewBox="0 0 24 24"
+          stroke="currentColor"
+        >
+          <path
+            strokeLinecap="round"
+            strokeLinejoin="round"
+            strokeWidth={1}
+            d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"
+          />
         </svg>
         <p className="text-sm text-white/30">
-          Finds files with identical content regardless of filename or location.
-          Click <strong className="text-white/50">Scan for duplicates</strong> to begin.
+          Finds files with identical content regardless of filename or location. Click{' '}
+          <strong className="text-white/50">Scan for duplicates</strong> to begin.
         </p>
         <p className="mt-2 text-xs text-white/20">
           Large libraries may take a minute — files are hashed from disk.
         </p>
       </div>
     </div>
-  );
+  )
 }
 
 export function DuplicateScanEmptyState() {
@@ -32,5 +41,5 @@ export function DuplicateScanEmptyState() {
     <div className="flex flex-1 items-center justify-center">
       <p className="text-sm text-white/25">No duplicate files found.</p>
     </div>
-  );
+  )
 }